/*
 * ==========================================================================================
 * =                   JAHIA'S DUAL LICENSING - IMPORTANT INFORMATION                       =
 * ==========================================================================================
 *
 *                                 http://www.jahia.com
 *
 *     Copyright (C) 2002-2025 Jahia Solutions Group SA. All rights reserved.
 *
 *     THIS FILE IS AVAILABLE UNDER TWO DIFFERENT LICENSES:
 *     1/Apache2 OR 2/JSEL
 *
 *     1/ Apache2
 *     ==================================================================================
 *
 *     Copyright (C) 2002-2025 Jahia Solutions Group SA. All rights reserved.
 *
 *     Licensed under the Apache License, Version 2.0 (the "License");
 *     you may not use this file except in compliance with the License.
 *     You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *     Unless required by applicable law or agreed to in writing, software
 *     distributed under the License is distributed on an "AS IS" BASIS,
 *     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *     See the License for the specific language governing permissions and
 *     limitations under the License.
 *
 *
 *     2/ JSEL - Commercial and Supported Versions of the program
 *     ===================================================================================
 *
 *     IF YOU DECIDE TO CHOOSE THE JSEL LICENSE, YOU MUST COMPLY WITH THE FOLLOWING TERMS:
 *
 *     Alternatively, commercial and supported versions of the program - also known as
 *     Enterprise Distributions - must be used in accordance with the terms and conditions
 *     contained in a separate written agreement between you and Jahia Solutions Group SA.
 *
 *     If you are unsure which license is appropriate for your use,
 *     please contact the sales department at sales@jahia.com.
 */
package org.jahia.utils;

import org.jahia.bin.listeners.JahiaContextLoaderListener;

/**
 * Request load average tool.
 */
@Deprecated(since = "8.2.1.0", forRemoval = true)
public class RequestLoadAverage extends LoadAverage {

    private static transient RequestLoadAverage instance = null;

    public interface RequestCountProvider {
        public long getRequestCount();
    }

    private RequestCountProvider requestCountProvider;

    public RequestLoadAverage(String threadName) {
        super(threadName);
        instance = this;
    }

    /**
     * This constructor is useful for unit testing.
     * @param threadName the name of the thread to run this class with
     * @param requestCountProvider custom provider of the request count value
     */
    public RequestLoadAverage(String threadName, RequestCountProvider requestCountProvider) {
        super(threadName);
        instance = this;
        this.requestCountProvider = requestCountProvider;
    }

    public static RequestLoadAverage getInstance() {
        return instance;
    }

    @Override
    public double getCount() {
        if (requestCountProvider != null) {
            return (double) requestCountProvider.getRequestCount();
        } else {
            return (double) JahiaContextLoaderListener.getRequestCount();
        }
    }
}
